Power conditioner / isolation transformer
I just purchased a couple of power conditioners by "OneAC" (model #MD1170 which I understand is equivalent to PCM750A). When I look inside basically all I see is a big switch, a HUGE transformer, and a small board with some poly caps on it connected to the receptacles. I measured the voltage coming out of my wall and it was ~122.5VAC. Then I measured the VDC and it swung between -0.3 and +0.3. Now when I measure the voltage THROUGH the conditioner I see ~126VAC and a swing between -0.1 and 0.1 VDC. I've got two identical units and they measure the same.
1) Huh? I thought this was supposed to regulate the voltage?
2) Do these provide surge protection at all?
power conditioners are usually used to remove some of the interference that accompanies the mains waveform.
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